The water quality parameters were studied in the Water Supply Management Lab in the Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology (SUST), Sylhet, Bangladesh. The water samples were measured and poured into 250ml beaker. The water samples were observed drop by drop on the slides and the slides was set up under microscope and check with 4x, 10x and 40x. Cyclops was identified by Todd [9] while Daphnia and Moina were identified according to Charles [10].